Hi – my kids have pointed out a pretty serious omission – in the current version of things (now 1.4 !) when the receiver becomes disconnected from the flight controller, the throttle says in the current setting – that means the props keep spinning with no ability to control the drone or turn it off. Had to use PVC pipe to push the receiver back on! Please change code to turn off all motors if receiver stops signaling (e.g, it becomes disconnected or fails). Thanks! Mike